OpenAir Script Custom Field Audit is a Chrome extension designed to validate custom fields within an OpenAir script and audit the 'Selected Custom Fields' list. This tool is particularly useful for ensuring the existence and usability of fields within a script when deploying from sandbox to production or diagnosing script malfunctions.

By using this extension, users can easily identify fields that need to be added or removed from the 'Selected Custom Fields' list, aiding administrators in tracking where custom fields are utilized. The process involves installing the extension, accessing OpenAir's scripting center, opening a script with visible code, clicking the extension icon, selecting "Audit Script," and receiving immediate feedback in the extension pop-up window.